Parametric Design And Optimization Of Pile Frame Of Super Large Pile Driving Vessel Based On APDL

Pile frame of pile driving vessel is an important season facility.It has drawn more andmore attention to assure the safe operation of lifts,in which the structural safety is theprimary requirement,so many manufacturers are introducing finite element analysis of pileframe structure.The serialized structure features of pile frame require special finite elementanalysis system to avoid a mass of repetitive operations and improve analysis efficiency.ANSYS is one of the most common finite element analysis software in the world.It haspowerful finite element analysis functions and is applied in structure analysiswidely.Moreover,it has good openness and second development function such as APDL、UIDL and UPFs.This subject targeting the pile frame of128m pile driving vessel applies the seconddevelopment functions of ANSYS to develop the parameterized pile frame finite elementanalysis system elementarily.ANSYS Parameter Design Language(APDL) is the nucleartechnique for the second development of ANSYS.This paper illuminates the development ofthe parameterized module with principle and application of APDL.To realize theparameterized module, we build template analysis process at first,then arrangecorresponding log document, introduce parameterized variable,and apply program flowcontrol command of APDL such as judgement statement and loop statement.Simple custom interface can be developed by User Interface Design Language(UIDL)of ANSYS.And the characteristic of this subject is just that the parameters needed to inputare simple and perspicuous.With the understand of UIDL,this paper illuminates how torealize the design of interface module of lift analysis system by calling UIDL controldocument from ANSYS and editing menu control document and dialog control document.Finally with the example of standard model of pile frame of128m pile drivingvessel,the parameterized lift finite element analysis system is proved to be able to avoid amass of repetivie operations and improve work efficiency by applyingit.Furthermore,nonprofessional finite element analysis personnel can also use this system toanalyze the parts or assembly structure of pile frames.